750-841 WAGO, 750-841 Datasheet - Page 6

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

vi • Table of Contents
4.1.2.4.1
4.1.2.4.2
4.1.2.4.3
4.1.2.5
4.1.3
4.1.3.1
4.1.3.2
4.1.3.2.1
4.1.3.3
4.1.3.3.1
4.1.3.3.1.1
4.1.3.3.1.2
4.1.3.3.2
4.1.3.3.3
4.1.3.3.4
4.1.3.4
4.1.3.4.1
4.1.3.4.2
4.1.3.4.3
4.1.3.4.4
4.1.3.4.5
4.1.3.4.6
4.1.3.4.7
4.1.3.5
4.2
4.2.1
4.2.2
4.2.3
4.2.3.1
4.2.3.2
4.2.3.3
4.2.3.4
4.2.3.5
4.2.3.6
4.2.3.7
4.2.3.8
4.2.3.9
4.2.3.10
4.2.3.11
4.2.4
4.2.5
4.2.5.1
4.2.5.1.1
4.2.5.1.2
4.2.5.2
4.2.5.3
4.2.5.4
4.2.5.5
4.3
MODBUS Functions ............................................................................ 149
EtherNet/IP (Ethernet/Industrial Protocol)........................................... 179
Network Communication................................................................. 133
General............................................................................................. 149
Use of the MODBUS Functions ...................................................... 151
Description of the MODBUS Functions.......................................... 152
MODBUS Register Mapping .......................................................... 164
Internal Variables ............................................................................ 166
Static Configuration of the Transmission Mode......................... 130
Dynamic Configuration of the Transmission Mode ................... 130
Errors Occurring when Configuring the Transmission Mode .... 130
Important Terms.......................................................................... 131
Protocol layer model ................................................................... 133
Communication Protocols........................................................... 135
ETHERNET ................................................................................ 136
Channel access method ............................................................... 136
IP-Protocol .................................................................................. 137
TCP Protocol............................................................................... 141
UDP............................................................................................. 142
ARP............................................................................................. 142
Administration and Diagnosis Protocols .................................... 143
BootP (Bootstrap Protocol)......................................................... 143
HTTP (HyperText Transfer Protocol) ........................................ 144
DHCP (Dynamic Host Configuration Protocol) ......................... 145
DNS (Domain Name Systems) ................................................... 146
SNTP-Client (Simple Network Time Protocol).......................... 146
FTP-Server (File Transfer Protocol)........................................... 146
SMTP (Simple Mail Transfer Protocol) ..................................... 148
Application Protocols.................................................................. 148
Function Code FC1 (Read Coils)................................................ 153
Function Code FC2 (Read Input Discretes)................................ 154
Function Code FC3 (Read multiple registers) ............................ 155
Function code FC4 (Read input registers) .................................. 156
Function Code FC5 (Write Coil) ............................................... 157
Function Code FC6 (Write single register)................................ 158
Function Code FC11 (Get comm event counter) ........................ 159
Function Code FC15 (Force Multiple Coils) ............................. 160
Function Code FC16 (Write multiple registers) ........................ 161
Function Code FC22 (Mask Write Register) ............................. 162
Function Code FC23 (Read/Write multiple registers) ................ 163
Description of the internal variables ........................................... 167
Watchdog (Fieldbus failure) ....................................................... 167
Watchdog Register:..................................................................... 168
Diagnostic Functions .................................................................. 172
Configuration Functions ............................................................. 172
Firmware Information ................................................................. 176
Constant Registers ..................................................................... 177
RAW IP .................................................................................. 141
IP Multicast ............................................................................ 141
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP